Extension-table.



No. 700,222. Patented May 20,1902.

6. W. MUNZ. EXTENSION TABLE.

, (Application filed Feb. 18,2901.)

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(No Model.)

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No. 700,222. Patanted May 20, I992.- 1

' c. w, munz.

EXTENSION TABLE.

, (Application filed Feb. 18, 1901.) I

(No Model.) I 2 Sheets-Sheet 2.

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UNITED Srnresi P T T Clarion.

CHARLES 'W. MUNZ, OF DETROIT, MICHIGAN.

EXTENSION-TABLE.

SPECIFICATION formingpart of Letters Patent No. 700,222, dated May 20, 1902. Application filed February 16, 1901. Serial No. 47,651; (No model.)

ence being had therein to the accompanying drawings. I

My invention relates to that class of extension-tables in which the leaves are permanently attached to an extensible end section of the table and when not in use are stored beneath the fixed top of the table between the side rails thereof. Withthistype of table the extension portion when drawn is usually unprovided with siderails. 'As' a consequence when the table is used without a cloth in extended position it has an unfinished appearance.

It is the object of my present improvement to provide extensions for the side rails of the table in the drawn position thereof, the said extensions being adapted to be stored with the leaves and when the table is 'drawn to automatically assume a position in extension of the fixed side rails.

It is a further object of my invention to provide means for automatically lifting the leaves when the table is drawn to the level of the fixed top, and,,further,-t'o provide a lock which prevents the separation. of .thefixed,

and extension sections while'flthen tableisin use.

The invention consists in the construction and arrangement of parts, as hereinafter described and claimed, whereby the objects set forth are accomplished.

In the drawings, Figure 1 is a plan View of anextension-table to which my improvements are applied. Fig. 2 is an enlarged cross-section substantiallyon liners as, Fig. 1. is a perspectiveview of the table-top and extension-section, showing one of the side-rail extensions in position. Fig.4 is a sectional;

perspective view illustratingthe"mechanism forelevatingthe leaves. Fig. 5is a longitudinal section thereof. Fig. 6 is a cross-section showing the mechanism illustrated in Fig. 5, and Fig. 7 is a horizontal section through the fixed and extended side rails.

The improvements are shown as applied to Fig. 3

awell-known type of extensiontablejn which A'is 'the fixed top. 'Bfrepresents side rails when closed has the appearance of having a' continuous railextending around on the sides and ends of thejtable. 4 When drawn, howeveiythe end rails are separated'from the side rails, sofas to leave an open gap varying in width acco'rdingto the number of leaves in use. The latter are attached to the slides E by a swinging connection comprising the parallel links or rock-arms G, pivotally at taehed at one end to said slides and attheir opposite ends to the under side of the leaf.

When the leaves are stored, the links G are .restsupon-the top of-the end rail, the opposite ,edge coming inuline with the fixed top and having a doweland-socket engagement therewith.

In orderto simplify theoperation of extending the table, I have provided means for automatically throwing up the end leaf when the slides are drawn, so that the operator only needs to draw the slides to their limit and then move them in again until the dowels are in engagement with their sockets, The mechanism employed for this'purp'o structed as follows: 7

turned so as to rest said leaves upon the slides v H is a rock-arm pivotally secur'edirfa-s-uitable bearing I upon the inner face of the epd rail of the table, the free end of said arm being adapted to engage with a socket or shoulder J on the under face of the leaf. Attached to this rock-arm is an operating rock-arm K, the two arms together jconstituting'a bellf crank lever; The arm K is connected to a rod L, which extends inward and is slidingly secured in a bearing M, preferably upon one of the cross-bars C. The rod is also provided near its end with a shoulder or stop a, adapted to strike against the bearing M before the slides are fully drawn, so as to pull upon the rod L and rock the bell-crank, causing the arm J thereof to swing the leaf N upward into position and alinement with the fixed top of the table. \Vhen theleaf is thus swung into position, it is only necessary to move the slides inward until the dowels b engage with their sockets. To then prevent the accidental disengagement of the dowels, I provide a locking device, and to this end the bearing M is made in the form of a hook pivotally secured at c to one edge of the cross-bar O and having a downwardly-extending arm (Z below the pivot. This arm is connected to a rod 6, extending to near the side of the table and having suitable means, such as the crank f, for drawing thereon to rock the bearing M and clamp the hook thereof against the rod L. Thus after the leaf is in position the operator needs only to turn the crank f, which will clamp the rod L so firmly in the bearing M that the table cannot be drawn until said clamp is released.

In order to avoid the gap in the side rails when the table is extended, I provide each of the leaves N with a side-rail section 0 at each end thereof. These sections are hinged at g to the under face of the leaves and are of a shape corresponding to the fixed side rails of the table, so that when turned down into a vertical position they exactly match with said fixed rails. In the storing of the leaves the sections 0 must be folded upward beneath the leaf into the position shown in dotted lines, Fig. 2. To automatically accomplish this movement, as well as to throw the sections down into position when the table is extended, a rock-arm P is secured to the under side of the leaf, having an operating connection with one of the links G. This rock-arm engages with a suitable cam, such as Q, upon the inner face of the section 0, which is adapted upon the rocking of said arm to swing the section inward into the dotted position, Fig. 2. It will thus be readily understood that the swinging of the sections 0 is automatically accomplished without attention from the operator, who only needs tooextend or contract the table. When the sections 0 are in position, as shown in Fig. 3, the table in its extended position will have the appearance of being provided with a continuous rail extending around on all sides.

In prior constructions of extension-tables of the type to which my improvements are applied it has been customary to form the ends of the end rails with rabbets engaging with the ends of the side rails in order to form a firmer joint between the two. Were such a construction used with the side-rail sections 0, the latter would not match exactly with said end rails, as the rabbet would leave an sections 0.

unfinished gap. I have therefore modified the construction of table so as to leave the end rails their full thickness at opposite ends to match with the end of the section 0, and in order to make a firm joint with the side rails I form a groove h on the inner face of said end rails near the end thereof, said groove being adapted to match with the tongue t' on the end of the side rail. This tongue-andgroove engagement will form a firm joint between the end and side rails and will not interfere with the operation of the swinging In order to avoid the tongue i, however, the sections 0 upon the inner ends must be reduced in thickness to avoid said tongue, as shown in Fig. 7.

What I claim as my invention is- 1. In an extension-table, the combination with the stationary section comprising a top and side rails, of an extension-section pro:

vided with a top or leaf and a side rail both adapted to be stored in the space inclosed by the top and sides of said stationary section, and means for automatically moving said extension side rail into alinement with said fixed side rail upon the movement of said extension top or leaf into the plane of said fixed top.

2. In an extension-table, the combination with the stationary section comprising a top and side rails, of an extension-section provided with a top or leaf and a side rail, both adapted to be stored in the space inclosed by the top and side rails of said stationary section, and means for automatically moving said extension side rail into or out of alinement with said stationary side rail upon the corresponding movement of said extension top or leaf in or out of the plane of said stationary top.

3. In an extension-table, the combination with the stationary section comprising a top and side rails,- of an extension-section having a leaf permanently carriedthereby, an extension sideqail section corresponding to said leaf and hinged thereto, means for raising and lowering said leaf to move the same into or beneath the plane of said stationary top, and means operated thereby for swinging said rail correspondingly in or out of alinement with said fixed side rails, whereby said extension-rail is automatically folded and stored by the contraction of the table.

a. In an extension-table, the combination with the stationary section comprising a top and side rails, of an extension, a leaf carried thereby, a swinging link connection between said leaf and said extension-section permitting of raising and lowering of the former, an extension side-rail section hinged to said leaf and a connection between said swinging link and said hinged side-rail section, whereby the latter is turned into alinement with the fixed side rail or folded for storing by the corresponding raising or lowering of said leaf.

5. In an extension-table, the combination with stationary and extension slides, comprising extension-slides and an end rail of a leaf .arm in engagement with said leaf, a rod connected to the other arm of said bell-crank,

and having a sliding engagement with said stationary section, and a stop for limiting the movement of said rod when the table is being extended whereby said bell-crank lever is actuated to swing said leaf upward into the plane of the stationary top.

6. In an extension-table, the combination with a stationary section and a movable top or leaf adapted to be stored therein, of a siderail section carried by said leaf and movable in relation thereto from a position permitting of storing into a position complementary to said stationary section and means for automatically operating said extension side rail by the movement of said leaf.

7. In an extension-table, the combination with stationary and extension sections, of a rod longitudinally and centrally arrangedbeing fixedly connected to one of said sections V and having a sliding engagement with the other, a clamping-lever for locking said rod from its sliding'movement, an operating-rod for said lever extending to the side of the table, and, a crank-arm for actuating said rod and lever and locking the same in position for clamping.

8. In an extension-table,'the combination with a stationary section and a movable top or leaf, of a side rail-section carried-by said 55 leaf and means for automatically moving said side-rail section relative to saidleaf by the movement of the latter relative to said stationary top. a

In testimony whereof I aifix my signature 40 in presence of two witnesses.

CHARLES W. MUNZ;

Witnesses:

M. B. ODOGHERTY, H; 0. SMITH. 

